09-openstack-storage-node

Install and configure a storage node

prepare the storage device.

# apt install lvm2

Create the LVM physical volume /dev/sdb :

# pvcreate /dev/sdb

Create the LVM volume group cinder-volumes :

# vgcreate cinder-volumes /dev/sdb

You must reconfigure LVM to scan only the devices that contain the cinder-volumes volume group.

/etc/lvm/lvm.conf

devices {

...

filter = [ "a/sdb/", "r/.*/"]

Warning: If your storage nodes use LVM on the operating system disk, you must also add

the associated device to the filter. For example, if the /dev/sda device contains the operating

system:

filter = [ "a/sda/", "a/sdb/", "r/.*/"]

Similarly, if your compute nodes use LVM on the operating system disk, you must also modify

the filter in the /etc/lvm/lvm.conf file on those nodes to include only the operating system

disk. For example, if the /dev/sda device contains the operating system:

filter = [ "a/sda/", "r/.*/"]

# apt install cinder-volume

/etc/cinder/cinder.conf

[database]

# ...

connection = mysql+pymysql://cinder:cinder@10.0.3.16/cinder

DEFAULT]

# ...

transport_url = rabbit://openstack:RABBIT_PASS@controller

auth_strategy = keystone

my_ip = MANAGEMENT_INTERFACE_IP_ADDRESS

enabled_backends = lvm

glance_api_servers = http://controller:9292

[keystone_authtoken]

# ...

auth_uri = http://controller:5000

auth_url = http://controller:35357

memcached_servers = controller:11211

auth_type = password

project_domain_name = default

user_domain_name = default

project_name = service

username = cinder

password = CINDER_PASS

[lvm]

# ...

volume_driver = cinder.volume.drivers.lvm.LVMVolumeDriver

volume_group = cinder-volumes

iscsi_protocol = iscsi

iscsi_helper = tgtadm

[oslo_concurrency]

# ...

lock_path = /var/lib/cinder/tmp

# service tgt restart

# service cinder-volume restart

Verify operation

$ . admin-openrc

$ openstack volume service list

cinder-manage service list

vgdisplay